Gcode Controller Troubleshooting

I'm the roboticist at Bond, a company developing CNC writing machines. We're currently driving all of our devices off of a TinyG CNC controller board, but it's got some odd behaviors to it. Ideally, we could get someone in who's had a lot of experience with the board to smooth out some of the wrinkles and show us how to keep it stable and predictable.
If you have extensive experience in another CNC controller system (GRBL, etc.) we'd love to hear from you.
This is a paid gig (negotiable) and ideally you'd be able to come in to our NYC office. Otherwise video conversation would be fine.